Tool sharpening device



Aug. 27, 1935. R. MAZE TOOL SHARPENING DEVICE Filed July 31, 1934 2Sheets-Sheetl IINVENTOR ydiz Aug. 27, 1935. R. MAZE 2,012,513

TOOL SHARPENING DEVICE Filed July 51, 1934 2 Sheets-Sheet 2 I N IE/V TORPatented Aug. 27, 1935 UNITED STATES PATENT OFFICE TOOL SHARPENINGDEVICE I Ralph Maze, Hollister, Calif. Application July 31, 1934,Serial'No. 737,758 2 Claims. (01. 76-82) It is one object of the presentinvention to provide a device whereby'a tool may be immovably supportedat a desired angle for the sharpening operation.

It is another object to provide a device capable of providing rigidsupport for various tools such as axes, hoes, chisels and knives.

It is still another object to provide a device wherein the tool maybefixedly supported at the I!) desired angle for sharpening, and alsowherein a file may be slidably supported in operative relation to thecutting edge of the said tool.

It is still a further object to provide means whereby the cutting angleof the file may be quickly and easily adjusted to the edge of the tool.

Finally it is an object of the invention to provide means of thecharacter indicated that will be economical to manufacture, simple inform and construction, that consists of few parts, that will be strongand durable, and highly eflicient in its practical application.

In the drawings: a

Figure 1 is a perspective view of one form of a hand axe.

Figure 2 is a perspective View showing the manner in which a file ismounted for use in connection with a tool holder such as shown in Figure1.

Figure 3 is a perspective view of the holder provided with adaptors tobe used in sharpening tools such as a chisel and garden ho'e, partsbeing broken away.

Figure 4 is a perspective view of a portion of the hoe sharpeningadapter shown in Figure 3.

Figure 5 is a perspective View of an adaptor for use in sharpening aknife such as a carving knife, a part being broken away.

In the particular embodiment of the invention herein disclosed I show atl a plate having one end bent back upon itself as at 2 to form a channel3, and having its opposite, or front, end turned upwardly as at 4. Thepart 4 has a recess 5 formed in the center of its upper edge, and has anupwardly and inwardly extending socket as 6 formed in each side edge.Mounted on each side edge of the plate and intermediate its ends areupstanding arms as 1 carrying an upstanding plate as 8, the lower edgeof the plate, as 9, being spaced from the plate I as shown. At II] areshown a series of holes formed in plate 8 and disposed in a line midwaybetween arms I and extending from its bottom edge 9 to its top.

At Hll are two wires twisted together at.

one end as at l2 and bent into a U shape so that the invention asadapted for use in sharpening.

when the twisted end is inserted in a hole I 0 the free end portionswill straddle the part 4 'and' be readily brought into engagement withthe sockets 6, the wire being resilient. A strap is shown at l3 bentaround one wire part I l to slidably engage the same and extendingacross the device and under the other wire portionllQ If, now, anordinary hand ax is to be sharpened the head, shown partially at I4, isplaced on plate I with its cutting edge overlying the top edge of part 4and the other end seated on part I and against part 8. The holder H-l2--l3 is now placed thereon with the end l2 inserted in a hole In and thefree end portions I ll l sprung into sockets 6.

With the holder mounted as described the strap l3 contacts the fullwidth of the axe head yet the wire ends may be readily spread to engagethe sockets.

At l5is a small U shaped element'having a set-screw l6 mounted therein,thereby forming a clamp to fasten on the blunt end of a file ll asshown. Extending from the clamp and in axial alignment with the file isa rod I8. Mounted on the clamp and held in place by the screw I6 is aplate l9, this plate having a flange 20 provided with a hole 2| throughwhich the rod l8 passes. The flange 20 serves to reinforce the plate l9.

When the axe is placed and secured as above described the rod 18is'inserted in one of the holes l0 and the file brought into contactwith the edge of the axe. The file may now be swung along the fulllength of the edge of the axe,

swinging about its engagement with hole H] as a pivot. The dotted line22 indicates the center line of the rod I8 and the file l1, and the arc23 indicates the direction of movement of the file when in operation.While the file is being manipulated as above described by one hand, theother hand of the operator may be brought to bear upon plate IS in orderto secure the desired cutting pressure.

If a chisel is to be sharpened, then an adapter is used. One form ofadapter is shown in Figure 3 where an L shaped member 24 is seated onplate I andagainst plate 8. A socket 25 is formed on the front of member24 and disposed to receive the butt end of the chisel which is thenplaced with its cutting edge in the recess 5 and held and sharpened inthe manner hereinbefore described.

To sharpen a hoe, a supporting member as 26 is provided, this memberhaving end portions as 21 bent back upon itself to form channels as 28the knifeiblade.

adapted to slidably engage the side edges of part 4. The member 26 isprovided with two symmetrically disposed ears 29, spaced as shown anddisposed to form a seat for the blade of the hoe. The blade is supportedby fingers 39 forming sockets as 3| and mounted on the rear face of theears as shown. For supporting the handle of the hoe I provide anextension 32 projecting forwardly and downwardly from the front of theplate I, and having a block 33 disposed on its forwardend, the saidblock having a recess 34 formed therein to receive the hoe handle. At 35is shown a hook mounted on extension 32 by means of a strong spring 36and so disposed that when the hoe is in position the hook may be movedinto engagement with the handle and cooperate with the ears 29 and block33 to hold the hoe immovably in position. When so. held the hoe may besharpened in the manner hereinbefore described. V A knife may besharpened in the manner described by providing a special holder such asshown in Figure 5. 'Ihis holder comprises a plate or member 31 havingchannelsas 38 formed on its side edges to slidably engage the side edgesof part 4. The upper portion of the member is inclined forwardly asshown at 39, each end having a strap as bent back to overlie part 39 andformed into a socket as! to receive and support It is to be understood,of course, that while I have herein shown and described certain specificembodiments of the invention, changes in form, construction, and methodof assembly and application, changes may be made within the scope of theappended claims.

I claim:

1. A tool holder comprising a plate, a fixed upstanding member thereonprovided with upward- 1y spaced holes, an upstanding flange formedthereon in spaced and parallel relation to the fixed member, and havingnotches formed in its side edges, a U shaped wire member engageable withone of saidholes at its closed end and having its open endengageable"with said notches, a plate disposed transversely of said wire member,said plate being mounted on one wire portion and passing under theother, and a file holding device engageable with one of the holes in thefirst mentioned fixed upstanding member and swingable over theupstanding flange.

2. A device of the character described comprising, a pair of fixedupstanding spaced and parallel members, one member being disposed toengage and support the cutting edge of an ax head and having stopsdisposed at either 1 side edge thereof, and the second member extendingabove the first and having vertically spaced means associated therewithfor slidably engaging a file holder, a U shaped resilient member havingmeans on its closed end to engage the second member and having its sideportions disposed to engage said stops, an element disposed transverselyof said side portions to receive the downward thrust thereof, and a fileholding device engageable with the second upstanding'member andswingable over the first member.

- RALPH MAZE.

